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Vacuum Dryer: Working Principle, Benefits, Applications & How to Select the Right System
Vacuum Dryer: Working Principle, Benefits, Applications & How to Select the Right System
Is a vacuum dryer suitable for my material? What is the real difference compared with hot-air drying? How much faster and safer is vacuum drying? What type of vacuum dryer should I choose?   This guide explains what you need to know about vacuum dryers. It covers how they work, their benefits, limitations, uses, and how to choose one.   What Is a Vacuum Dryer?   A vacuum dryer is a machine used in industry. It removes moisture or solvents by using low pressure. This lets water evaporate at lower temperatures. This makes it ideal for:   Heat-sensitive materials Chemically unstable or easily oxidized products High-value biological or  drug-manufacturing ingredients Materials requiring solvent removal or recovery   By lowering the atmospheric pressure inside the chamber, the boiling point of water drops significantly. As a result, you can complete drying without exposing materials to damaging high heat.   How Vacuum Drying Works   1. Reduced Pressure → Lower Boiling Point   Under vacuum, water or solvents evaporate at lower temperatures:   At normal pressure: water boils at 100°C At 20 kPa vacuum: water boils at ~60°C At 10 kPa vacuum: water boils at
January 13, 2026 767
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